Window-sash.



C. W. DUNN.

WINDOW SASH. APPLICATION F |LED MAYIS, 191a.

Patented Mar. 25,1919.

CHARLES W. DUNN, OF NEW YORK, N. Y.

WINDOW-SASH.

Specification of Letters Patent.

Patented Mar. 25, 1919.

Application filed May 13, 1918. Serial No. 234,247.

To all whom it may concern:

Be it known that I, CHARLES W. DUNN, a citizen of the United States, anda resident of New York, in the county of New York and State of New York,have invented a certain new and useful Improvement in Window-Sashes, ofwhich the following is a full, clear, and exact specification.

This invention relates to a form of sash for the windows of building andthe like.

My invention has for its object primarily to provide a sash designed tobe employed in the windows of buildings and other structures, andwhichis of a form to allow the window pane to be easily cleaned by a personwhile on the inside of the structure, in order to overcome requiring theperson to lean out of the window to clean the outside of the sash, thusavoiding the danger incident to the use of the ordinary types of sash.The invention consists essentially of an outer frame adapted to bearranged in the window of a building so as to be raised and lowered bysuitable means in the usual fashion, and extending inwardly of thisframe is a substantially rectangular flange. Pivoted to the flange is aninner frame with a transparent plate adapted to be rotatably swung inthe flange, and to the outer frame is hinged a guard frame for beingswung toward and from the transparent plate, while protruding from theguard frame is an approximately rectangular flange member of a sizeadapted to be moved within the flange of the outer frame into and out ofcontact with the inner frame of the transparent plate to serve as aweather protector.

A further object of the invention is to provide a window sash of asimple and effieient construction which is susceptible of being made inany suitable size and shape.

A practical embodiment of the invention is represented in theaccompanying drawing forming a part of this specification in whichsimilar characters of reference indicate corresponding parts in all theviews, and will then be pointed out in the claims at the end of thedescription.

In the drawing, Figure 1 is a view, partly broken away, showing thefront elevation of the window of a building with two of my improvedsashes applied thereto.

Fig. 2 is an enlarged detail sectional view partly broken away, taken onthe line 2-2 of Fig. 1.

Fig. 3 is an enlarged detail sectional view, partly broken away, takenon the line 33 of Fig. 1.

Fig. 4c shows a perspective of one of the pivots used in the sash, and

Fig. 5 is an enlarged perspective view of the window sash.

The window sash has an outer frame 10 which may be made of any requiredsize for being movably fitted in a frame, as 11, of the window of abuilding or other structure so as to be raised and lowered in the usualfashion by employing in conjunction with the sash the customarycounterbalances, as 12, with cables, as 13. The outer frame 10 of thesash is preferably substantially rectangular in shape, being composed oftwo spaced stiles 14, 15, a bottom crossbar 16, and a top crossbar 17,all of which are substantially rectangular in cross section as well asbeing relatively arranged so that one f their faces are in opposition.

The outer frame 10 is preferably of a size whereby two of the sashes maybe used in a single window, as shown in Fig. 1, and extending inwardlyof the outer frame from one of its edges is a substantially rectangularflange 18. This flange is of a width considerably less than the width ofthe outer frame, and within the flange is a swinging inner frame 19carrying a plate or windowpane 20 of glass or other transparentmaterial. The inner frame 19 is of a size to fit closely as well asallowing the frame with the windowpane to be swung to make a partial orcomplete revolution in the flange of the outer frame whereby all partsof both surfaces of the windowpane may be readily cleaned by a personfrom the interior of the building without the person being required tolean out of the window. To accomplish this the central parts of thesides of the inner frame 19 are pivoted, at 21 and 22, to the flange 18and outer frame 10. The pivots 21 and 22 may be of any suitable types,besides being of similar formations, though each pivot is preferablycomposed of a sleeve, as 23, one of which is secured in an openingprovided in each side of the flange 18 and in each side of the outerframe 10. Rotatably arranged in the sleeve 23 of each of the pivots is ashort rod or stud, as 24, and both of these studs protrude in oppositelateral directions from the sides of the inner frame of the windowpane.In this manner the inner frame and wmdowpane may be swung of thebuilding.

In order to serve as a weather protector against drafts of air passingthrough the space between'the'flange 18 and the-inner frame 19 as wellas serving to prevent the inner frame with the windowpane from be ingsurreptitiously swung onits pivots, I

provide a guardframe, as 25. This guard frame is approximatelyrectangular in shape,besides being of a size to movably fit closelywithin the outer frame 10. The guard frame 25 is hinged, at 26 and 27 tothe outer frame so that the guard frame may be swung into and out ofcontact with the flange 18 of the outer frame, and this guard frame isofa width corresponding approximately to-the combined widths of theflange of the outer frame and the frame 19 of the windowpane. Projectingfrom the inner edge part ofthe guard frame 25 toward the inner frame 19of the windowpane is an approximately rectangular flange member 28 whichis of a size so that the flange member removably fits within .the

flange 18 of the outer frame 10. The'thickness of the inner frame 19 issuch to permit the flange member 28 to be accommodated in the flange 18,and by arranging the guard frame 25 to function in this manner air willbe prevented from entering the space between the inner frame 19 and theflange 18 of the outer frame. The'guard frame also serves to prevent theinner frame with the windowpane from being accidentally orsurreptitiously opened, and to releasably lock- I Thus a simple andeflicient sash is provided the guard frame 25 to the outer frame 10,

I may employ any suitable form of catch, as

39, whereby the guard frame may be locked to the outer frame when.closed therein.

for use in the, windows of buildings. and other structures whereby thepane may be easily cleaned by a person without being required to leanout of the window.

In the foregoing description, I have embodied the preferred form of myinvention,

but I do not wish to be understood as limiting myself thereto, as I amaware that modifications may be made therein without departing from theprinciple or sacrificing any 7 of the advantages of this invention,there- Copies of this patent may be obtained for fore I reserve tomyself the right to make such changes fairly fall within the scopethereof. 7

Having thus described my invention, I

claim as new and desire to secure by Letr ters "Patent LA window sash,comprising an outer frame adapted to be movably arranged in a windowsoas tobe raised and lowered, an inner frame witha transparent platepivoted to the outer frame for being rotatably. swung within the 1 outer"frame, a guardframe within the outer frame, hinged so as to be swunginwardly and outwardly of the outer frame toward and from thetransparent plate, and means toreleasably lock the H guard frametotheouter frame.v l

2. A window sash, comprising an outer: frame adapted to be movablyarranged in a window so asto' be raised and lowered, a substantiallyrectangular flange extending inwardly of the frame, an inner frame witha transparent plate pivoted to therectangular flange for being rotatablyswung within the flange, a guard frame withinthe outer frame, hinged soas to be swung to-" ward and from the transparent plate, and

a substantially rectangular flange member protruding from the guardframe, adapted to move within the flange of the outer frame into and outof contact with the frame of the transparent plate when the guard frameis swung accordingly. J v v 3. A window sash, comprising an outer frameadapted to be movably arranged in a window so as to be raised andlowered, a,

substantially rectangular flange extending.

inwardly of the frame, an inner frame with a transparent plate pivotedtothe rectangular flange, for being rotata'bly swung within the flange, aguard frame within the outer frame, hinged so asto be swung toward andfrom the transparent plate, a substantially rectangular flange memberpro-f truding from'the guard frame, adapted to move within the flange ofthe outer frame into and out of contact with the frame of'thetransparent plate when the guard frame is swung accordingly, and a catchto releasably lock the guard frame to the outer frame.

' This specification signed and witnessed this eleventh day ofMay'A. D.1918.

I CHARLES W. DUNN. Witnesses: V

GEORGE F. BENTLEY, CELIA KAUFMAN.

five cents each, hy addressing the "Commissioner of Patents. Washington,D. C. i

